Organic and inorganic materials, water, air, and living organisms together make up

and living organism together make up THE SOIL.
Soil is the uppermost layer of the earth in which plants grown. It usually have a dark or brown coloration as a result of the decaying organic materials which it contains. There are different types of soil depending on the type of particles which they contain, but the best soil for agriculture is loamy soil.

Heatamount of salt . . .